Frequency converter
Latest Vacon Oyj Patents:
Description
The broken lines shown represent unclaimed subject matter and form no part of the claimed design.
Claims
The ornamental design for a frequency converter, as shown and described.
Referenced Cited
U.S. Patent Documents
4620263 | October 28, 1986 | Ito |
D400182 | October 27, 1998 | Yamada |
6249435 | June 19, 2001 | Vicente et al. |
D455399 | April 9, 2002 | Imamura et al. |
D468687 | January 14, 2003 | Hamada et al. |
D502916 | March 15, 2005 | Higuchi et al. |
D560607 | January 29, 2008 | Suematsu et al. |
D560608 | January 29, 2008 | Dornauer et al. |
D562234 | February 19, 2008 | Morihara et al. |
D563316 | March 4, 2008 | Higuchi |
Patent History
Patent number: D654022
Type: Grant
Filed: Oct 1, 2010
Date of Patent: Feb 14, 2012
Assignee: Vacon Oyj
Inventors: Lihua Sun (Suzhou), Mikko Kannisto (Riihimaki), Hans Carlsson (Voyri), Antti Vuola (Espoo)
Primary Examiner: Derrick Holland
Attorney: Holland & Hart LLP
Application Number: 29/376,152
Type: Grant
Filed: Oct 1, 2010
Date of Patent: Feb 14, 2012
Assignee: Vacon Oyj
Inventors: Lihua Sun (Suzhou), Mikko Kannisto (Riihimaki), Hans Carlsson (Voyri), Antti Vuola (Espoo)
Primary Examiner: Derrick Holland
Attorney: Holland & Hart LLP
Application Number: 29/376,152
Classifications
Current U.S. Class:
Transformer, Rectifier Or Casing Therefor (3) (D13/110)